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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11784315 B1

PDFFull Text
Date of Patent:
Oct. 10, 2023

Filed:

Aug. 28, 2018

Lithium secondary battery

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Bora Jung, Daejeon, KR;

Eunkyung Park, Daejeon, KR;

Minchul Jang, Daejeon, KR;

Byoungkuk Son, Daejeon, KR;

Changhun Park, Daejeon, KR;

Doyeon Kim, Daejeon, KR;

Assignee:

LG ENERGY SOLUTION, LTD., Seoul, KR;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Kenneth J Douyette

Int. Cl.
CPC ...
H01M 4/80 (2006.01); H01M 4/36 (2006.01); H01M 4/48 (2010.01); H01M 4/50 (2010.01); H01M 4/52 (2010.01); H01M 4/38 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/58 (2010.01); H01M 4/62 (2006.01); H01M 10/052 (2010.01); H01M 10/0562 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/80 (2013.01); H01M 4/364 (2013.01); H01M 4/366 (2013.01); H01M 4/382 (2013.01); H01M 4/483 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/5825 (2013.01); H01M 4/628 (2013.01); H01M 10/052 (2013.01); H01M 10/0562 (2013.01); H01M 2004/021 (2013.01); H01M 2300/0068 (2013.01);
Abstract

A lithium secondary battery including a negative electrode in which a negative electrode mixture included in the negative electrode is formed by charge and discharge of the battery. This negative electrode is formed by charge-induced formation of lithium metal on a negative electrode current collector having a three-dimensional structure form. The lithium secondary battery forms lithium metal while being blocked from the atmosphere. Therefore, formation of a surface oxide layer (native oxide layer) on a negative electrode is blocked and a lithium dendrite growth suppressing effect is achieved by forming lithium metal on a negative electrode current collector having a three-dimensional structure form. The lithium secondary battery has a superior battery efficiency and reduces declines in lifetime properties.

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